Air conditioner



FIG. 1 is a front, top and right side perspective view of an air conditioner, showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof, the bottom plan view is omitted as that is symmetrical to the top plan view thereof; and,

FIG. 5 is a right side elevational view thereof, the left side elevational view is omitted as that is symmetrical to the right side elevational view thereof. 

The ornamental design for an air conditioner, as shown and described. 